EXHIBIT 4-E
 
DERIVATION OF WATER RATIONING TRIGGERS
FOR THE MONTEREY PENINSULA WATER RESOURCES SYSTEM
FOR WATER YEAR 2006

(All Values are in Acre-Feet)
 
                       
   
   
   
   
   
                           
  MAY-SEPTEMBER CARRYOVER  TOTAL STORAGE  
  DEMAND STORAGE REQUIRED ON MAY 1  
   
  Percent of Annual Demand Water Rationing Stage   
  100% 67% 33% 0% 4 5 6 7  
  Imposed if storage is less than:  
                           
   
  CAL-AM 7,498 14,789 9,909 4,880 0 22,287 17,407 12,378 7,498  
   
  NON CAL-AM 1,722 2,695 1,806 889 0 4,417 3,528 2,611 1,722  
   
  TOTAL 9,220 17,484 11,714 5,770 0 26,704 20,934 14,990 9,220  
   
                           
  Text Box: Notes: 1. The May-September period refers to the remainder of the current water year. 2. Carryover storage refers to the volume of usable surface and ground water that is in storage at the end of the current water year and is projected to be available for use at the beginning of the following water year. 3. Total storage refers to the combination of demand remaining from May 1 to the end of the current water year and carryover storage for the next water year that is required to avoid imposing various levels of water rationing. The values in bold type represent the storage triggers that would be used for the system in Water Year 2006. The values are based on the current production limit for Cal-Am from Carmel River sources set by the State Water Resources Control Board in Order No. WR 95-10, the production limit for Cal-Am from coastal subareas of the Seaside Groundwater Basin set by the Court in its March 27, 2006 adjudication decision, and the production that was reported for non Cal-Am users from the Monterey Peninsula Water Resources System in Water Year 2004, which is the most recent "below normal" year. 4. The rationing triggers are based on physical water availability and do not account for legal or environmental constraints on diversions from the Carmel River system.
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  /u/staff/boadpacket/2006/2006boardpacket/20060515/ConsentCal/04/item4_exh4e.xls